DOI: 10.1175/JCLI-D-13-00663.1
Scopus记录号: 2-s2.0-84907573450
论文题名: A global climatology of outgoing Longwave spectral cloud radiative effect and associated effective cloud properties
作者: Huang X. ; Chen X. ; Potter G.L. ; Oreopoulos L. ; Cole J.N.S. ; Lee D. ; Loeb N.G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 19 起始页码: 7475
结束页码: 7492
语种: 英语
Scopus关键词: Cloud radiative effects
; General circulation model
; Long-wave radiation
; Model evaluation/performance
; Satellite observations
; algorithm
; atmospheric general circulation model
; climatology
; cloud radiative forcing
; global climate
; longwave radiation
; MODIS
; radiation budget
; satellite imagery
英文摘要: Longwave (LW) spectral flux and cloud radiative effect (CRE) are important for understanding the earth's radiation budget and cloud-radiation interaction. Here, the authors extend their previous algorithms to collocated Atmospheric Infrared Sounder (AIRS) and Cloud and the Earth's Radiant Energy System (CERES) observations over the entire globe and show that the algorithms yield consistently good performances for measurements over both land and ocean. As a result, the authors are able to derive spectral flux and CRE at 10-cm-1 intervals over the entire LW spectrum from all currently available collocated AIRS and CERES observations. Using this multiyear dataset, they delineate the climatology of spectral CRE, including the far IR, over the entire globe as well as in different climate zones. Furthermore, the authors define two quantities, IR-effective cloud-top height (CTHeff) and cloud amount (CAeff), based on the monthly-mean spectral (or band by band) CRE. Comparisons with cloud fields retrieved by the CERES-Moderate Resolution Imaging Spectroradiometer (MODIS) algorithm indicate that, under many circumstances, the CTHeff and CAeff can be related to the physical retrievals of CTH and CA and thus can enhance understandings of model deficiencies in LW radiation budgets and cloud fields. Using simulations from the GFDL global atmosphere model, version 2 (AM2); NASA's Goddard Earth Observing System, version 5 (GEOS-5); and Environment Canada's Canadian Centre for Climate Modelling and Analysis (CCCma) Fourth Generation Canadian Atmospheric General Circulation Model (CanAM4) as case studies, the authors further demonstrate the merits of the CTHeff and CAeff concepts in providing insights on global climate model evaluations that cannot be obtained solely from broadband LW flux and CRE comparisons. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51099
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI, United States; Earth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Canadian Centre for Climate Modelling and Analysis, Environment Canada, Toronto, ON, Canada; Goddard Earth Sciences Technology and Research, Morgan State University, Baltimore, MD, United States; Radiation and Climate Branch, NASA Langley Research Center, Hampton, VA, United States
Recommended Citation:
Huang X.,Chen X.,Potter G.L.,et al. A global climatology of outgoing Longwave spectral cloud radiative effect and associated effective cloud properties[J]. Journal of Climate,2014-01-01,27(19)